422406437 has 4 divisors (see below), whose sum is σ = 431393856. Its totient is φ = 413419020.

The previous prime is 422406433. The next prime is 422406451. The reversal of 422406437 is 734604224.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 422406437 - 2² = 422406433 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422406433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4493639 + ... + 4493732.

It is an arithmetic number, because the mean of its divisors is an integer number (107848464).

Almost surely, 2^422406437 is an apocalyptic number.

422406437 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

It is an amenable number.

422406437 is a deficient number, since it is larger than the sum of its proper divisors (8987419).

422406437 is an equidigital number, since it uses as much as digits as its factorization.

422406437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8987418.

The product of its (nonzero) digits is 32256, while the sum is 32.

The square root of 422406437 is about 20552.5287251958. The cubic root of 422406437 is about 750.3147934846.

The spelling of 422406437 in words is "four hundred twenty-two million, four hundred six thousand, four hundred thirty-seven".